jimmy86
thanks a lot tarkaston ; praveen,
The problem is that my scores are varying drastically...
On Manhattan my scores vary from 680 to 710 ,
on the gmat prep-1 i got 680 on the first practice test and then 750 on the second one.
kaplan score varies from 680 to 740....
But i am consistently bad on DS and SC
So i am really not sure where i stand.
@ praveen : any tips for last minute improvements? DS/SC
Desperately need a score above 720
I don't know of any last minute tricks for SC, if I did, I myself wouldn't have landed up with a 680 and wouldn't be preparing for the second test right now.

DS, yes, there are very repeated
type of DS on the GMAT. You gotta have a feel of that. By reading the question, you need to know what type of DS question they are referring to. DS is very easy to score, if you can decipher that. Try to work on that. An example of it, many times when the answer is C, you will have to laboriously solve using both I and II. As the calculations are a bit laborious and you might solve it wrongly and tend to go for E. So, if you figure out that that the question is a typical DS question requiring you to spend a tad few seconds more, but sure to land up with a C, you need to make sure you got the calculation right and go to the next question.
Initially, I was not doing good on DS, but once I started to pick the DS question type, my accuracy increased.